//屏蔽回车事件
$(function(){
	/*document.onkeydown = function(e){ 
		var ev = document.all ? window.event : e;
		if(ev.keyCode==13) {
       		return;
 		}
	};
	*/
	document.onkeydown = function(){
		if(event.keyCode == 13){
			event.keyCode = 0;
			event.returnValue = false;
		}
	};
});